How is an HTM calculated?
What will be an ideal response?
U value times temperature difference
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For the following five spreadsheet functions, (a) write the values of the engineering economy symbols P, F, A, i, and n, using a ? for the symbol that is to be determined, and (b) state whether the displayed answer will have a positive sign, a negative sign, or it can’t be determined from the entries.
(1) = FV(8%, 10, 3000, 8000) (2) = PMT(12%, 20, –16000) (3) = PV(9%, 15, 1000,600) (4) = NPER(10%, –290,, 12000) (5) = FV(5%, 5, 500, –2000)
Which type of condenser uses a fan to push air across the condenser?
A) A natural-draft air-cooled condenser B) A packaged air-cooled condenser C) A forced-draft air-cooled condenser D) An induced-draft air-cooled condenser
Most hybrid vehicle high-voltage cables are __________________ in color to warn technicians of the danger of handling or working near these cables.
Fill in the blank(s) with the appropriate word(s).
Why do water and refrigerant flow in opposite directions in tube-in-tube condensers?
A) To decrease pressure B) To increase pressure C) To decrease efficiency D) To increase efficiency